Exactly the same thing happened to me and I have no idea how or why the bpool had been exported.
The one thing I would add to Corey's work around, which worked perfectly is that the $MYDRIVEID I used was the UUID of the bpool partition (best found in disks), unless that was just my issue? Thanks Corey I have been hours on this! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1885234 Title: package zsys 0.4.6 failed to install/upgrade: installed zsys package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1885234/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs